<!DOCTYPE HTML>
<html>
    <head>
        <meta charset='utf8'>
        <title>文本缩进</title>
        <style>
        p{
            text-indent: 1em;
            text-align: justify;
        }
        </style>
    </head>
    <body>
         <p>
             GitHub Pages is deeply integrated with Jekyll, a popular static site generator designed for blogging and software documentation, but used for much more. Jekyll makes it easy to create site-wide headers and footers without having to copy them across every page. It also offers some other advanced templating features.
         </p>
    </body>
</html>